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Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6551118729

Certificate GIA 6551118729

Diamond specifications and retailer prices

From £3,616 GBP
As of November 6, 2026
Save £3,465 GBP (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,081 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551118729. Listed at 8 retailers as of November 4, 2026, with prices from £3,616 to £7,081, a £3,465 spread on the same certified stone. MOH London lists it at £7,081. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551118729
Dimensions9.31 × 6.06 × 4.10 mm
L/W Ratio1.54
Top View
9.31 mm6.06 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551118729
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £7,081 GBP|Low: £3,616 GBP|High: £7,185 GBP|Avg: £5,085 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2£3,616 GBP
Retailer 3£4,577 GBP
Retailer 5£4,819 GBP
Retailer 4£5,263 GBP
MOH London£7,081 GBP

42 data points across 5 retailers

8 retailers£3,616 GBP to £7,081 GBP

A
Cheapest Retailer
-
£3,616 GBP
A
Retailer 2
-
£4,192 GBP
View
A
Retailer 3
-
£4,203 GBP
View
A
Retailer 4
-
£4,577 GBP
View
Retailer 5
-
£4,819 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£4,937 GBP
View
A
Retailer 7
-
£5,263 GBP
View
Most Expensive
B+
MOH London
AFA2496EC · Nov 4
£7,081 GBP
View
7 more retailers have this diamond
Prices start from £3,616 GBPSave up to £3,465 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Oval
£3,616 GBP